Introduction to Cell

IMPORTANT

Introduction to Cell: Overview

This topic covers concepts such as cell, microscope, etc.

Important Questions on Introduction to Cell

EASY
IMPORTANT

Fill in the blanks using the words given below.

(Mycoplasma, microscope, nucleus, ostrich egg, cytoplasm, lysosome, mitochondria, Robert Hooke, plant, cell membrane)

The instrument used to see tiny objects is called a _____.

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Why cells could not be observed before 17th century?

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Choose two cells which keep changing their shape.

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All organisms are made up of _____.

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_____is the basic unit of life.

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temporary stained mount of onion peel has large number of similar, small structures called _____.

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The common cementing layer present between two adjacent cells is called _____.

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Select one factor from the below given options that is common to living organisms and machines.
(Metabolism, Energy, Consciousness)

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What instrument do we need to see a unicellular organism?

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Which component brings about important processes in the living organisms?

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Write the full name of the scientist who discovered the cell. (Robert Hooke/ Ernest Rutherford)

MEDIUM
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Explain the parts of a compound microscope with the help of a labelled diagram.

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Differentiate between temporary and permanent slides.

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A thin section of a specimen is taken for viewing it through a microscope because

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According to the modern colloidal theory, the protoplasm is a polyphasic colloidal system. This was first suggested by

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Who proposed the theory "cells arise only from the pre-existing cells"?

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In which one of the following organisms cell theory cannot be applied?

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Who proposed "Cell theory''?

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A few major discoveries in cell biology are listed:-

a. Schleiden and Schwann proposed the cell theory

b. Leewenhoek discovered bacteria

c. Golgi stained cells with silver nitrate discovered golgi apparatus

The correct chronological order of these events starting with the earliest event is :-

EASY
IMPORTANT

Who said, 'all cells arise from pre-existing cells'?